Temporarily unavailable. Yamato Scientific America has temporarily suspended sales of the ULF and LTF freezer series to comply with EPA and CARB refrigerant requirements. Yamato is replacing them with the VUF and VLF series.
Why order the ULF301C from LabSupplies.com
Chest Style Ultra Low Freezers -40°C To -85°C, 9 cu.ft., Manual Defrost Overview
Cascade refrigeration pairs two hermetic compressors with an air-cooled condenser and two heavy-duty fans, so no liquid coolant is required. CFC-free R-508B and R-404A refrigerants drive the system. Chamber walls use 14-gauge zinc-coated galvanized steel, while the exterior is 16-gauge steel powder-coated cool gray.
Key Features
- Multi-stage alarm system: battery-operated audible and visual signals on mechanical or electrical failure, plus over- and under-temperature settings, a silencing switch, and a battery test switch.
- Power failure recovery: an automatic timer system restarts the unit after a power interruption.
- Cascade refrigeration: two hermetic compressors with CFC- and HCFC-free R-508B and R-404A refrigerants reach -85°C.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 9 cu.ft. |
| Temperature Range | -40°C to -85°C |
| Defrost | Manual |
| Interior Capacity | 255 L / 9 cu.ft. |
| Rack Capacity | 16 racks |
| Interior Dimensions | 46" × 16" × 20" (116 × 40 × 50 cm) |
| Exterior Dimensions | 57.5" × 29" × 46.5" (146 × 73 × 116 cm) |
| Temperature Control System | Digital control with dual display (set point and chamber temperature); scan button for temperature setting; tamper-proof lockout |
| Refrigeration System | Cascade type — two hermetic compressors |
| Refrigerant | CFC-free R-508B and R-404A (CFC- & HCFC-free) |
| Condenser | Air-cooled with two heavy-duty fans; no liquid coolant required |
| Alarm System | Battery-operated alarm emits an audible and visual signal on mechanical or electrical failure; over- and under-temperature settings, alarm silencing switch, and battery test switch; relay provided for remote alarm hook-up |
| Power Failure Recovery | Automatic timer system restarts the unit after a power failure |
| Electrical Requirements | 115V / 208V / 230V, 60 Hz, 1-phase; 220V, 50/60 Hz, 1-phase |
| Optional Accessories | Chart recorder; CO₂ and LN₂ back-up system; racks; cold safety gloves |
| Material | Chamber is 14-ga. Zinc coated galvanized steel. Exterior is 16-ga. steel. Power coated cool gray |
| Country of Origin | USA |
| GTIN (Barcode) | 797059929863 |
| Shipping Weight | 675 lbs |
| Shipping Dimensions (L × W × H) | 62 × 40 × 55 in |
| Component Size | 9 CF |
| Other Certification | UL Listed |
| Warranty | 1 year (Yamato Scientific America) |
| Service | Calibration and preventive maintenance on site by Yamato-certified technicians or at Yamato's California service center |
Compare ULF Series Models
| Model | Capacity | Temperature range | Racks | Interior (W × D × H) | Exterior |
|---|---|---|---|---|---|
| ULF001C | 2 cu.ft. | -40°C to -85°C | 6 racks | 17" × 14" × 14" (43 × 35 × 35 cm) | 25.25" × 25.75" × 40" (64 × 65 × 101 cm) |
| ULF101C | 3 cu.ft. | -40°C to -85°C | 8 racks | 24" × 12" × 18" (60 × 30 × 45 cm) | 34.5" × 25.25" × 48" (87 × 64 × 121 cm) |
| ULF201C | 5 cu.ft. | -40°C to -85°C | 15 racks | 30" × 18" × 16" (76 × 45 × 40 cm) | 40.5" × 31" × 47" (102 × 81 × 119 cm) |
| ULF301C (this model) | 9 cu.ft. | -40°C to -85°C | 16 racks | 46" × 16" × 20" (116 × 40 × 50 cm) | 57.5" × 29" × 46.5" (146 × 73 × 116 cm) |
| ULF401C | 12 cu.ft. | -40°C to -85°C | 27 racks | 55" × 19" × 20" (139 × 48 × 50 cm) | 65.5" × 32" × 47.5" (166 × 81 × 120 cm) |
| ULF501C | 14 cu.ft. | -40°C to -85°C | 30 racks | 62" × 20" × 20" (157 × 50 × 50 cm) | 72.5" × 33" × 47.5" (184 × 83 × 120 cm) |
| ULF601C | 17 cu.ft. | -40°C to -85°C | 36 racks | 69" × 20" × 21" (175 × 50 × 53 cm) | 81.25" × 33.5" × 48.5" (206 × 85 × 123 cm) |
| ULF701C | 21 cu.ft. | -40°C to -80°C | 36 racks | 81" × 21.5" × 21" (205 × 54 × 53 cm) | 91" × 36" × 49" (231 × 91 × 124 cm) |
| ULF801C | 22 cu.ft. | -40°C to -85°C | 36 racks | 67" × 19" × 30" (170 × 48 × 76 cm) | 98" × 36" × 43.5" (248 × 91 × 110 cm) |
| ULF901C | 27 cu.ft. | -40°C to -80°C | 48 racks | 67" × 23" × 31.25" (170 × 57 × 79 cm) | 98" × 36" × 43.5" (248 × 91 × 110 cm) |
Ordering Information
| Catalog number | GTIN / UPC |
|---|---|
| ULF-301C | 797059929863 |
| Manufacturer | Yamato Scientific |
| Manufacturer part number | ULF-301C |
| UNSPSC | 41103000 — Ultra Low Freezer |
| Export classification (ECCN) | EAR99 |
Documents & Downloads
More in This Series
- Yamato ULF001CP Platinum Chest Style Ultra Low Freezers -40°C To -85°C, 2 cu.ft., Manual Defrost
- Yamato ULF101UN Undercounter Ultra Low Freezers -40°C To -85°C, 2 cu.ft., Manual Defrost
- Yamato ULF101CP Platinum Chest Style Ultra Low Freezers -40°C To -85°C, 3 cu.ft., Manual Defrost
- Yamato ULF201CP Platinum Chest Style Ultra Low Freezers -40°C To -85°C, 5 cu.ft., Manual Defrost
- Yamato ULF201UN Undercounter Ultra Low Freezers -40°C To -85°C, 3 cu.ft., Manual Defrost
- Yamato ULF401C Chest Style Ultra Low Freezers -40°C To -85°C, 12 cu.ft., Manual Defrost
View all Ultra-Low Temperature Freezers →
Frequently Asked Questions
What temperature range does the ULF301C reach?
The ULF301C operates from -40°C to -85°C. A cascade refrigeration system using two hermetic compressors and CFC-free R-508B and R-404A refrigerants reaches the ultra-low end.
How much storage capacity does this freezer provide?
The chamber holds 9 cu.ft. (255 L) and accepts up to 16 racks. Interior dimensions measure 46" × 16" × 20" (116 × 40 × 50 cm).
What electrical supply does the ULF301C require?
The unit runs on 115V, 208V, or 230V at 60 Hz, single-phase, or 220V at 50/60 Hz, single-phase. Confirm your available circuit before installation.
What materials are used in construction?
The chamber is 14-gauge zinc-coated galvanized steel. The exterior is 16-gauge steel finished in powder-coated cool gray.
How does the freezer protect samples during a power failure?
An automatic timer system restarts the unit after a power failure. Battery-operated audible and visual alarms signal mechanical or electrical faults, and a relay supports remote alarm monitoring.
What is the UNSPSC code for the Yamato ULF301C?
The Yamato ULF301C is classified under UNSPSC 41103000 (ultra low freezer).
Where is the Yamato ULF301C manufactured?
Yamato Scientific lists USA as the country of origin for the ULF301C.
Is there a spec sheet or brochure for the Yamato ULF301C?
Yes. The Yamato ULF Series Ultra-Low Freezer brochure (845 KB PDF) is linked under Documents & Downloads on this page.
How does the Yamato ULF301C compare with the other ULF Series models?
Yamato builds this ULF Series line in 10 sizes: 2 cu.ft. (ULF001C), 3 cu.ft. (ULF101C), 5 cu.ft. (ULF201C), 9 cu.ft. (ULF301C), 12 cu.ft. (ULF401C), 14 cu.ft. (ULF501C), 17 cu.ft. (ULF601C), 21 cu.ft. (ULF701C), 22 cu.ft. (ULF801C) and 27 cu.ft. (ULF901C). The comparison table on this page lists capacity, temperature range, racks, interior (w × d × h) and exterior side by side.
Which alarms does the Yamato ULF301C have?
Yamato lists these alarms for the ULF301C: battery-operated alarm emits an audible and visual signal on mechanical or electrical failure; over- and under-temperature settings, alarm silencing switch, and battery test switch; relay provided for remote alarm hook-up.
What are the interior dimensions of the Yamato ULF301C?
The Yamato ULF301C chamber measures 46" × 16" × 20" (116 × 40 × 50 cm) inside (W × D × H).
How many storage racks does the Yamato ULF301C hold?
Yamato rates the ULF301C at 16 racks in 255 L / 9 cu.ft. of storage.
What refrigeration system does the Yamato ULF301C use?
The Yamato ULF301C uses cascade type — two hermetic compressors, CFC-free R-508B and R-404A (CFC- & HCFC-free) refrigerant and manual defrost.
What certifications does the Yamato ULF301C carry?
Yamato lists the ULF301C as UL Listed.
What optional accessories are available for the Yamato ULF301C?
Yamato offers these options for the ULF301C: chart recorder; CO₂ and LN₂ back-up system; racks; cold safety gloves.
What are the electrical requirements for the Yamato ULF301C?
Yamato specifies 115V / 208V / 230V, 60 Hz, 1-phase; 220V, 50/60 Hz, 1-phase for the ULF301C.
What are the shipping dimensions and weight of the Yamato ULF301C?
Yamato's shipping data lists the ULF301C at 62 × 40 × 55 in and 675 lb packed.
